Epson PX-M781F Error 0x0090
The Epson PX-M781F printer is renowned for its efficient performance and reliability. However, there are times when users may encounter error code 0x0090, which is displayed as “STK PID lock error.” This error typically indicates a problem with the Stacker motor not running as expected.
There can be several potential causes for this error. Firstly, it could be due to an overload of the mechanism, possibly causing the gears to break and hinder the motor’s functioning. Another possibility is an encoder failure, which could be caused by contamination on the Stacker motor encoder scale or a damaged Flexible Flat Cable (FFC), disrupting the sensor’s ability to read accurate motor position data. Additionally, the Stacker motor itself may be faulty, directly impacting its ability to run smoothly. Lastly, if all the aforementioned components are in working order, a failure of the main board could be the underlying issue.
To troubleshoot this error, there are a few steps you can try. It is advisable to check if any foreign objects or debris are obstructing the Stacker motor or gears. If contamination is found on the encoder scale, it should be cleaned carefully to ensure accurate readings. Inspecting the FFC for any visible damage is also recommended. Replacing any faulty components, such as the Stacker motor or main board, may be necessary if all other possibilities have been ruled out.
In conclusion, the Epson PX-M781F error code 0x0090, displaying as “STK PID lock error,” indicates a problem with the Stacker motor. By troubleshooting and addressing the possible causes mentioned, users can resolve this issue efficiently and restore the printer’s optimal functionality.
| Printer Model | Epson PX-M781F |
| Error Code | 0x0090 |
| Display on | PRINTER |
| Description and troubleshooting | STK PID lock error. The Stacker motor did not run. Overload of the mechanism. Broken gears. Encoder failure. Contamination of the Stacker motor encoder scale. Damaged FFC. Failure of the Stacker motor encoder sensor. Failure of the Stacker motor. Failure of the main board. |
